Combined type-writing and computing machine.



F. F. MAIN." COMBINEDTYPE WRITING AND CO MPUTQING 11110111111. 1 1783659.

APPLICATION FILED JAN. 20, I912- P wnted Apr. 11,1916.

4 SHEETS-SHEET 1..

F. F. MAIN.

'COMBINED'TYPE WRITING AND- COMPUTING MACHINE. APPLICATION FILED JAN. 20, I912.

Patented Apr. 11, 1916. Q

4 SHEETSSHEET 2- F. F.-MAIN. COMBINED TYPE WRITING AND COMPUTING MACHINE. APPLICATION FILE-D JAN. 20I 19121 1,178,659. Patented Apr. 11,1916.

4 SHEETS-SHEET 3.

. F. F. MAIN..

COMBINED TYPE WRITING AND COMPUTING MACHINE. APPLICATION FILED JAN. 20, 19|.2. r 1 17 59, Patented Apn'll, 1916.

4 SHEETSSHEET 4- IIII u WW Wbbwwow I I r v I m cago, in the county of Cook. and State of 1 tion of a single platen for supportmgithe U I LIED L OFFICE,

FRED F. MAIN,

TION OF NEW YO RK.

or CHICAGO, ILLINOIS, ASSIGNOB,- BY unnnnwoon conrurme MACHINE COMI'ANY, or new roan,

nssrenninnrs, 130 N. Y., a conronacorinnvnn' zrizrn-wnrrmcr Anncomr-U'rnve MACHINE.

' Specification of January 20, 1912.

To aZZ whom it may concern: Be it known that L/FRED F. MAIN, a c1t1- zen of the United States, residing in Chi- Illinois, have invented certain newand useful Improvements in Combined Type-Writ- 4 ing and Computing Machines, of which the following is a specification. I

This invention relates to atypewriting attachment for-a computing machine, and is an improvement on the construction shown and described in Patent No. 1,110,443, granted Septemberlfi, 1914, and is a-divi sion of my application No. 649,501, filed September 15, 1911. A. feature of this invention is the utilizawork sheet, whichican cooperate with both the typewriting me hanism and the coinputing mechanism, to enable the printing on the, work sheet of any calculation worked outby the computing mechanism, with such remarks added by the typewriting mechani'sm as may be deemed especially desirable in connection, with work which is mostly computing, and yet where it is necessary to add a word of explanation here and there. I 5 r I In the embodiment of the invention shown herewith, the keys for actuating the printing and other actuated mechanism of the typewriter are separate from the computing or adding mechanism and its keys. This is to say, the keys of the typewriter are located in front of 'the adding machine. while the actuated mechanism isloc-ated in back of the adding machine. In this machine, it will be seen that the carriage escapement is controlled from the front through the intermediary' of a universal member. The tabulating spacing of the carriage .is also controlled from the front in a new manner. In view of the fact that the platen must cooperate with both theadding mechanism and the typewriting mechanisnnthis tabu-' lating spacing of the'carriage'must be -of a peculiar character. Ordinarily in the typewriting machine, the tabulating bars for'positioning the carriagearemovedv into-the, path of tabular or column stops on thecarriage, and thenjafter thestop'pin and vpositioning'have,beensaccomplisheit ese-stops are removed permitting the camf'iagef-. t0.

necessary. This is Lettersrteiit'. j w I Divided and this application filed Serial No. mesa;

move on. an ordinary computing machine, such as the Burroughs, the carriage is jumped from one column to another. and

.is held fixed at each column "without intermediate" feed, and the. whole computation of "Fatented Apr. 11, 1916.

a column printed at-one'stroke? In this in vention, a tabular spacing mechamsm 1s provided which admits of bot or column sto types of action suitable for both. the computmg mechamsm and the typewriting' mechanism. mg tabulating or'column stops carried by the carriage rendered ineffective to stop the carr age by a silencer, when the carriage is movingunder the control of the typewriting mechanism; the silencer being rendered inefl'ective at the actuation of a tabulating or column stop key. The ribbon is shifted'and This is accomplished by -hav-.-

fed at'the actuation of each-'typewriting key through the intermediary of a universal member and mechanism connected thereto. Other features and advantages will heremafter appear.

'In the accompanying drawings, Figure 1 is a side view, with parts broken away to show the underlying structure. front view in elevation, with-parts removed to simplify the showing-and to uncover the concealed elements. Fig. 3 isa rearview with parts removed to disclose underlying elements. Fig.4 is a fragmentary perspective 'view ofthe carriage eseapement mechanism.

Fig. 21s a i a5 i Fig. 5 is a fragmentary'transverse section of a part of the carriage escapement f mechanism. 7 Referring more particularly tothe separate parts of. this invention as embo the drawings, 1 indicates an adding machine which may be of anysuitable character, and inthis instance a Burroughs adder,

operated to set up the figures, to be calculated, b'y'keys 2,-the fig--- ures being printed when desired by printing mechanism indicated at 3, through the ,actuation of an operating lever 4.

'- The adding machine 1 divides the typewriting mechanism mto actuating means 5 and actuated means 6, the former of which died is shown in the form of is located in front of the-adding machine, and the-latter of which is locatedv to the rear of the. adding machine. The adding machine and machine have a common the typewriting element, which in V i this instance is shown as a platen 7, with which the printing mechanism of the adding machine and the typewriting machine can cobperate at the will of the operator. The actuating means 5 embodies a plurality of character keys 8, which are adapted to" opat. can swing from cooperative juxtaposition intermediary ofa link 13, a

with the type bars 10, to cotiperative juxtaposition. with the printing mechanism 3, when the handle 4 is operated, through the bail arm 14 and a link 15. The two positlons of the platen will be seen in' full and dotted lines in Fig. 1. I

\Vhen any one of the keys 8 isactuated, it is returned to its *normal position by means of a spring 16, but'before returning to its normal position, it will have operated a universal member 17, which is shown in the form of a U-shaped bar pivoted at 18. This universal bar may be provided with stops 19, so that all of the character, keys can, coiiperate' therewith." The universal bar 17 may be returned to its normal position by means of a spring 20. The type writing mechanism is provided, as is usual in most typewriters," with a ribbon 21 which the type on the typebars l0 strike, so as to obtain the necessary imprinting on the paper. It is desirable that this .ribbon should be fed from'time totime, so as to present a fresh surface "to the type bars at each stroke. For this purpose there are provided reels 22 and *"npposite ends of the ribbon 21, and which .tween the work are mounted on shafts 24. One or both of these shafts may be driven from the universa liiar 17 by having provided theseon a ratchet" wheel 25, which is engaged by a spring-pressed pawl 26 on a lever 27, which is connected to the universal har17 by means of aflink 28. Theratchet wheel 25 may be held in any adjusted position by means-of adetent 29. Itis also desirable that theribbon 21 should be shifted from a position away from the work sheet, to a position besheet on the platen 7 and the type on the type bars 10 at each stroke of a character key. Forfthis purpose there is provided a link 30 connected to the universal bar 17, so as to be operated thereby at each stroke 01 a character key, which llnk in turn is connected to one arm of a bell ,crank lever 31 so as to manipulate the samelf'iThe opposite end of this bell crank lever extends to the rear of the adding machine, where it is adjustably connected, by means of one or more nuts 32, to a spindle link 33, which is rotatablymounted on one turn is slidingly mounted carriage-'39, by means Thls ratchet .mechanlsm 52 111- 23, which support the arm of a bell crank lever 34. This bell crank lever 34 is provided with arms 35 which together with pivotally mounted arms 36, form a support for a shift 38, which carries the ribbon 21 in such a manner, that the ribbon can slip through it and yet will be manipulated b the shift, so as to move from a position eX acent the type on the type bars 10 and 'thesheet on the platen 7, position interjacent these elements.

The platen frame 11 is pivotally mounted on a carriage 39, as at 12. This carriage in porting members, as by means of rolls 40 and 41, which travel on ways 42 and 43 respectively. For the purpose of moving the carriage 'step-by-step in a letter-feeding direction, there is provided the usual spring drum 44 connected to the carriage by a flexible connection 45. In order to prevent the carriage from instantly returning under the influence of this spring drum, there is provided an escapement mechanism which includes a pinion 46 meshing with a rack 47 on the carriage 39. The pinion 46 is rotatably mounted on a shaft eled at its bottom, as at 49, so as to swing the pinion 46 into and out of engagement with the rack 47. This pinion 46 is normally held in engagement with the rack 47 by means of a spring 50, so as to provide for a normal sten-bv-step movement of the carriage.

Located adjacent the lower end or shalt 48, there is provided an escapement wheel 51, which is held from movement under the influence of the spring 44 pulling on the of a ratchet mechanism 52. cludes a lever 53 having a fixed detent 54 and a-pivotally mounted dog 55. The dog 55, when the lever 53 is at its normal/position, engages between the teeth of the escapement wheel 51, so as to prevent the rotation of the escapement wheel 51, andthus the move ment of the carriage under the tension of the spring 44. This dog 55 is forced into alinement with the fixed detent 54, by the rotating tendency of the escapement wheel 51,,but tends to assume a position in front of and out of alinement with said detent under the urgency of a spring 56. When the lever 53 is swung up at its detent and dog-carrying end, the detent 54 will come between the teeth of the escapement wheel,

holding the same against movement while the dog 55 is lifted from engagement with the teeth of the escapement wheel, .permltting it to swing upward between thencxt on suitable supmovement is l m ted a Shoulder 17 there' i on engaging a corresponding shoulder on the lever 53.1 Movement of the escapement wheel 51 in the opposite direction is per-'- mitted by, the dog 55 being formed in two parts, pivotally connected at 58, thelower portion of which @forms a, spring-pressed a character or space key. Aside from this step-by-step escapement of the c'arriage,'it.

isjdesirablethat. the; carriage should have a at predetermined points, as for example, in making a. lural-ity' of columns of names or or this purpose there is provided on the carriage 39, a bar 64,fon whichare xed portion of the frame In order to bring the tabulating stops 55 85 into operation, it is] merely necessary-to.

swing the shaft 48 so as to disconnect the pinion 46 from engagement] with the rack 47,- When' the carriage will jump until the Y next stop 65 comesin-engagerhent with the.

to projection-67. Forthe purpose of shifting this shaft 48,in this manner, there is pro-' 'vided a bell crank lever 69 which engages the shaft 48, and. is ogerated through the intermediary of a' link byan arm '11 se- 5 cured on 41 shaft 72. ;The shaft 72*is pro Vided at the front of the/machine with an arm 73, connected to a tabulating' key 74,

mounted injuxtaposition-to the character keys 5. It is'undesirable, however, that these eta?! should be-in'such a position, that they engage the projection 67 and thus stop the carriage when the step-by-step. escapement mechanism is in operation. In order w to avoid this, there is provided a cam lever 85 75, which is provided with a cam run 76, the

apex of which is adapted to engage a promien 77 onthe stops 65,,so as to swing the 66 of Said stops upward to such a positlon, that they will pass over the projection 67. This is made possible by the 'fact that the rod 64 is rotatably mounted." The apex of the cam run76 occurs at a point. corresponding to the projection 67 so that when any one of the. stoos 65. is in a position to stop the carriage, it willbe "l ifted, if the' not disturb the obstructing action'of the" -stops 65.

' It will be seen I I I I that the carriage is per mitted to travel step-by-step under the influenc enof spring 44, at each impression of jump; movement, so as to position the platen mounted a plurality of adjustable tabulating j "stops 65 having toes 66 adapted'to engage-a- I an element which coeperates with both the rojection 67 .on a stop 68, secured to any adding mechanism and the typewriting r txejithin the scope of the-invention, and pi ons ofthe claim:

' ing mechanism tabulating mechanism is not in operation.

If the tabulating mechanism, however, is in operation, means is provided for lifting the camlever -7 5 to 'such'a position, that it will I 70 For this purpose the shaft 72 is provided with an arm 78 connected by a lever 79 to a link 80, which is connected'at its o'ppositeend to anyarm 81lof the cam lever 75.- P I f 'lli that when the tabulating .key ,74 is operated to rotate the shaft 72, the cam lever 7 5 will belifted out of cotip-I I erative relation with respect to the projection 77 on the stops.65 so, that said stops so] will be free, to engage the projection 67. The cam legerr7 5 will return automatically -to'its operative position on'the removal of *pressure fromthe tabulating key 7e, bythe action ofa "spring 82.;Qiie or more space or 85 stop keysBj} may be provided for operating the step-by-step escapemen't, by manipulating the universal bar 17 without the actus ation of'any of the type bars;

It will be seen thatftherei's provided a" new and improved machine embodying'type-,

" writing mechanism and adding mechanism, ,thelatter-of which divides the former into two parts, .to-wit, actuating and; .actuated elements, and in which there is provided mechanism, so that the results of. both can be-impressed ona single worksheet placed on this element, which inthis case is shown" in the form fof a platen. It will befurther see'niithatmean's is provided for actuating the,ribbon both to shift and. feed the same, and for controlling the step-by-step escapement ofqthe carriage' concomitantly with the actuationof each and all of the char-' 'acter keys; It will be further seen that provision is madeforuthe roper jump move- ,ment'of the carriage or tabulating' purposes. I

. 'Variations may be resorted improvements may be used without others? Havipgthus; described my invention, I

1. The combination, with a platen, and

'acarriage thereforrpf a'set' of type-bar's".

coiiperating with said platen; keys for actu ating said type-bars; step -by-step escapement'mechanism fdr said carriage; tabulatfor said carriage, compris-- in'g stops for stopping s'aid carriage at predetermined points initstraveh'and a projection coe'perating with said, stops .and means actingduring and consequent upon 12 the st'ep-by-step movement of saidcarriage,- to automatically and positively withdraw saidstops from eoeperative relation to said projection i a a 2. The combination, with a platen, andating said type-bars; step-by-step escapement mechanism for said carriage; tabulatng stops for stopping 0 said stops during and consequent upon the.

ing mechanism .for said carriage, comprismg stops For stopping said carnage at predetermined points in its travel, and'a projection ooeperating with said stops; and a cam operative upon said stops during and consequent upon the step-by-step movement of said carriage, to Withdraw said stops from cooperative relation to said projection.

3. The combination,'wi th a platen, and a carriage therefor; of a set-0f t pe bars cooperating with said platen; keys or actu-. -ating said type-bars; step-by-step escapement mechanism for said carriage; tabulatirig mechanism for said carriage, comprissaid carriage at predetermined points in its travel, and a proje'ction cooperating with said stops; and a member arranged to act successively upbn step-by-step movement of said carriage, to

automatically and positively withdraw said stops from cooperative relation to said projection.

4. The combination, with a 51mm, and

i a carriage therefor; of a set of type-bars cooperating with said platen; {keys for actuating said type-bars; step-b'y-step escapement mechanism for said carriage; tabulating mechanism for said carriage, comprising stops for stopping said carriage at predetermined points in its travel, and aprojection cooperating with said stops; and a mechanism is in action.

cam. arranged,- to successively engage said stops during and consequent upon the stepby-step movement of said carriage, so as to shift said stops out of position to cooperate with said projection.

5. The combination, with a platen, and av carriage therefor; of a set of type-bars cooperating with said platen';'keys for actuating said type-bars; step-by step escape.- ment mechanism for said carriage; tabulating mechanism for said carriage, comprising stops for stopping said carriage at predetermined points in; its travel, and a projection cooperating with said stops; means acting during and consequent upon the stepby-step movement of said carriage, to automatically and positively withdraw said stops from cooperative relation to said projection;

and means for rendering the last mentioned tabulating means ineffective when said Y6. The combination, with a platen, and a carriage therefor; of a set of type-bars cooperating with said platen; keys for actuatf ng said type-bars; step-by-step escapement mec anism for said carriage; tabulating mechanism for said carriage, comprising stops for stopping said carriage at'predetermined points in its travel, and a projeccarriage therefor; of a set of type-bars 09- operating with said platen; keys foractuating said type-bars; step-by-step escapem'ent mechanism for said carriage; tabulating mechanism for said carriage, comprising stops for stopping said carriage at predetermined points in its travel, and a projection cooperating with said stops; a pivotally-mounted cam arranged to act successively upon said stops during and consequent updff the step-by-step movement of said carriage, to automatically and positively withdraw saidstops from cooperative relation to said'projection; and means for a shifting said cam into ineffective position when said tabulating mechanism is in action. 8. Thecombinationg with a platen, and a carriage therefor; ofia set of type-bars cooperating with said platen; keys for actuatingsaid type-bars; step-by-step escapement mechanism for said carriage; tabulating. mechanism for said carriage comprising a rock shaft, column stops thereon, and a projecti'on cooperating with said stops; and means acting during and consequent 'upon the step-by-step movement of said carriage, to automatically rook said shaft and thereby withdraw said stops from cooperative relation to said projection.

9. The combination, with'a platen, anda-loa carriage therefor; of a set of type-bars cooperatingwith said platen; keys for actuating said-type-bars; step-by-step .escapement mechanism for said carriage; tabulating mechanism for said carriage comprising a rock shaft, column stops thereon, and a projection cooperating with said stops; releas-' ing means on said shaft; and a member acting during and consequent upon the step-bystep movement of said carriage, to automa-ti- 113 cally engage said releasing means so as to rock said shaft and thereby withdraw said stops from cooperative relation to said projection.

10. The combination, with a'platen, and-a carriage therefor; of a set of type-bars cooperating with said platen; lgeys for'actuating said type-bars; step-by-step escapement mechanism for said carriage; tabulating mechanism for said carriage comprising a tion coiip'erating with said stops; a member mass arranged to automatically. rock said shaft during and consequent upon the step-by-step movement of said carriage, so as to withdraw said stops from cooperative relation to said projection; and a key for actuating Z said tabulati-ng mechanism. and simultaneously shifting said member into ineffective position. I 11. Thecombination, with a platen, and

a carriage therefor; of a set of type-bars co-i operating With said platen;"keys for actuat-' ing said type-bars; step-by-step escapement mechanism normally coupled to said carriage;

tabulating mechanism compris ng column stops, and a projection cooperating therewith; means acting duringand consequent upon the 'step-by-step movement of said carriage, *to automatically and positively withdraw said stops-from cooperative relation t'o said projection; and-a .key for uncoupling said escapement andsimultane- 'ously" shifting said member into inefi'ective position.

12. The combinatiom with aplaten arranged to carry awork-sheet, of printing mechanism cooperating with said platen to print character by character, printingmechanism cooperating with said platen to print-a group of ment mechamsm' mechanism for enabling 'maqor movements of said platen correspondlng to a group of characters, and means for shifting said platen bodily so as to cooperate alternatively 'w1th either of said printing mechanisms.

I 13. The combination with a platen arprint a groupof characters en bloc,

ranged to carry a Work-sheetfof printing mechanism cooperating with said platen toprint character by character,- printing mechanism cooperating with said pl'aten' to escape ment mechanism for enabling step-by-step mechanisms movements of said platen, jump-movement mechanism for enabling 1113.101 movements,

of. said platencorresponding to a group of characters and from both I for silencing one of them when the'other is inaction. Y

'lj The combinatlon, with a platen, of a tabul'ating mechanism normally in opera-' tive position;

step by step escapement mechanism normally in operative position;

and means automatically brought into operation during the step-by-step feed of the platen for rendering said tabulating mechanism inoperative.

15. The combination, with a platen; of a.

tabulating mechanism normally in operatire position; step-by-step escapement mechanism normally in op '1' broughtinto operation during the step-bystep feed of the platen for rendering said tabulating mechanism inoperative; and

st P- yp zone; platen instantaneously from characters en bloc, escapefor enabling step-by-step' movements of said platen, jump-movement automatic means separate of said movement-enabhngv "ing erative position; means means automatically brought into u LIL... by the actuationofsaid tabulating mechanism for rendering the vlast-namedi means inoperative.

16(The combination, with a platen; of

printingmechanism cooperating with said platen'to print-a group of characters'at one time; printing mechamsmcooperating with said platen to print character by character; a jump-movement mechanism normally in operative position for positioning said platen for diii'erent zones or major columns;

escapement mechanism for positioning said platen for'letter -sp'aces in a shifting means for adjusting the same line of the work-sheet on the platen cooperation with; one" printing mechamsm'to cooperation with'theother printing 'mechamsm when in a zone; means automatically. brought into action duringthe step-by-step feed of the platen for rendering the jump-movement mechanism inoperatlve; and means automatically brought into action by the operation of said j ump.emoveinent mechanism for rendering the last-named means inoperative.

17. The combination, ranged to carry a with a platen. ar-j work-sheet; of printing mechanism'cooperatlng with said platen to print Qiaracter by character; printing mechanlsm cooperating with said platen to print a group of characters at one time; escapement mechanism for enabling step-bystep movements oflsaid platen; jump-movement mechanism for-enabling'movements of. said platen characters; and means for imparting :a bodily sidewise movement to said platen so as to shift it from a position to cooperate with one of said printing mechanisms toa position to cooperate with the other of said mechanisms.

bodily so as to cooperate alternatively with either of said printing mechanisms; and automatic means separate movement-enabling mechanisms for silencone of them while the other is in action.

19. The combination, with a platen arranged to carry a work-sheet; of printing mechanism cooperating with said platen to print character by character; prmtmg mechanism cooperating with said platen toprint a group of characters at one time; escapement mechanism for enabling stepcharacters at one time; es-

from both of said .100- corresponding to a group of:

by-step movements of said. platen; jump- .ing the step-by-step feed of the platelnfor movement mechanism for enabling moveo rendering said tabulatingmechanism inopments of said platen corresponding to a erative; and a key for bringing said tabu= 20 1 group of characters; means for imparting lating mechanism into action andsimulta- 5 a bodily sidewise movement to said platen neously rendering said means inoperative. so as to shift it from a position to cooperate 21. The combination, with a platen; of a With one of said printing mechanisms to a tabulating mechanism normally in operative position to cooperate with the other of said if-position; step-by-step escape'ment mecha- 25 mechanisms; and automatic means separate nism normally in operative position; a 10 from both of said movement-enabling mechmovably-mounted member automatically 1 anisms for silencing one of them While the brought into operation during the step-byother is in action. I step feed of the platen, for rendering said 20. The combination, With a platen; of a tabulating mechanism inoperative; and a 30 tabulating mechanism normally in operative key for bringing said tabulating mechanism 15 position; step-by-step escap'ement mechainto play and simultaneously shifting said nism normally in operative position; means member into inoperative position. automatically brought into operation dur- FRED F. MAIN.

Copies of thin patent may be obtained for five cents each, by addressing the Commissioner of ratentl. wafihingtomn. G. l 

